Todd Lipcon has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/13193 )

Change subject: IMPALA-7293: Show tuple layout in explain plan.
......................................................................


Patch Set 3:

(2 comments)

http://gerrit.cloudera.org:8080/#/c/13193/3/fe/src/main/java/org/apache/impala/analysis/SlotDescriptor.java
File fe/src/main/java/org/apache/impala/analysis/SlotDescriptor.java:

http://gerrit.cloudera.org:8080/#/c/13193/3/fe/src/main/java/org/apache/impala/analysis/SlotDescriptor.java@76
PS3, Line 76:   public static final OffsetComparator OffsetComparator_ = new 
OffsetComparator();
you can probably do:

public static final Comparator<SlotDescriptor> COMPARE_BY_OFFSET =
  Ordering.natural().onResultOf(SlotDescriptor::getByteOffset);

(using guava's Ordering utility)


http://gerrit.cloudera.org:8080/#/c/13193/3/fe/src/main/java/org/apache/impala/analysis/SlotDescriptor.java@331
PS3, Line 331:       expBuilder.append("Slot " + getId() + " ");
Consider using Objects.toStringHelper, eg:

return Objects.toStringHelper("Slot")
  .add("offset", getByteOffset())
  .add(type, getType()
  .toString();

which results in a string like 'Slot{offset=1, type=INT}', etc. and it has 
handy methods to skip null, etc.



--
To view, visit http://gerrit.cloudera.org:8080/13193
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: Iac38290217a219e75400e4206835992a7ea31dba
Gerrit-Change-Number: 13193
Gerrit-PatchSet: 3
Gerrit-Owner: Abhishek Rawat <[email protected]>
Gerrit-Reviewer: Abhishek Rawat <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Tim Armstrong <[email protected]>
Gerrit-Reviewer: Todd Lipcon <[email protected]>
Gerrit-Comment-Date: Fri, 03 May 2019 05:49:21 +0000
Gerrit-HasComments: Yes

Reply via email to